201313213 has 4 divisors (see below), whose sum is σ = 202192540. Its totient is φ = 200433888.

The previous prime is 201313193. The next prime is 201313223. The reversal of 201313213 is 312313102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102151449 + 99161764 = 10107^2 + 9958^2 .

It is a cyclic number.

It is not a de Polignac number, because 201313213 - 2⁹ = 201312701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201313223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439320 + ... + 439777.

It is an arithmetic number, because the mean of its divisors is an integer number (50548135).

Almost surely, 2^201313213 is an apocalyptic number.

It is an amenable number.

201313213 is a deficient number, since it is larger than the sum of its proper divisors (879327).

201313213 is an equidigital number, since it uses as much as digits as its factorization.

201313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879326.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 201313213 is about 14188.4887496872. The cubic root of 201313213 is about 586.0807091016.

Adding to 201313213 its reverse (312313102), we get a palindrome (513626315).

The spelling of 201313213 in words is "two hundred one million, three hundred thirteen thousand, two hundred thirteen".